Originally designed by Belgian sailors, it is named after General Montgomery of El Alamein fame, and used in the British Royal Navy in the World Wars. For the rough outdoors.
- CUT, STYLE: single-breasted with frog-fastening/'walrus-teeth'-like toggles and hemp loops instead of
buttons, as the loops can be opened and closed whilst wearing gloves. Often there is a tartan lining.
- SEAMS, FRONT DARTS, STYLE: It has a shoulder yoke with stitched fold,
- VENTS: no vent but with an inverted pleat to allow easier movement.
- COLLAR: shoulder yoke with collar button tab. It typically has a hood large enough to accommodate a naval cap.
- CUFFS: a button tab on the sleeves.
- POCKETS: it has big patch pockets.
- LENGTH: hip-length or up to half-thigh length.
- MATERIAL WEIGHT: Heave wool named after the town of Duffel near Anvers